[추가] 채널페이지에서 추가로 필요한 query 준비

**문제점 (선택)**
[노션링크](https://www.notion.so/mugles/query-b1926e5497a642e1b712453e130a74ea)

**해결책**
A clear and concise description of what you want to happen.

**다른 해결책 (선택)**
A clear and concise description of any alternative solutions or features you've considered.

**추가 설명**
Add any other context or screenshots about the feature request here. (레퍼런스 등)
